fish

fish [number of fish] [days]
* time: as given
* priority: 3

A unit must be on a ship on the ocean in order to fish. Each day, the
unit has a 50% chance of encountering fish. If fish are found, each
sailor will catch one fish that day, as long as fish stocks in the ocean
province last. Ocean provinces generate 50 catchable fish per month.

A unit must know the Fishing [9582] subskill of Shipcraft [120] in order
to fish, and must have at least one sailor.